Nuran ASMAFİLİZ, Gamze ELMAS, Aytuğ OKUMUŞ, Selen Bilge KOÇAK, Zeynel KILIÇ

Phosphorus-nitrogen compounds- Part 50 : correlations between structural parameters for cylophosphazene derivatives containing ferrocenyl pendant arm s

The results of a systematic study of spiro-cyclotri/tetraphosphazenes with ferrocenyl pendant arm on the basis of correlation between structural parameters were presented. The main parameters were obtained from Xray crystallography and 31 P NMR results in order to investigate the relationship between the δ P$_{spiro}$ shift values and endocyclic and exocyclic NPN bond angles, and electron density transfer parameters. Structural parameters derived from 11 types of the ferrocenyl cyclophosphazene derivatives with 5- to 7-membered spiro-rings introduced to the literature from our research group were studied and compared with each other.

Keywords:

spirocyclic Ferrocenyl phosphazene $^{31}$P NMR, X-ray crystallography, endocyclic bond angle, exocyclic bond angle, electron density transfer parameter,

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